Recommended Hager RCCB 4-Pole Devices
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Compact 4-pole RCD for three-phase + neutral systems.
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40 A, 30 mA sensitivity — ideal for personal shock protection in smaller three-phase boards.
HAGER CD440B 40 /A 4P 30 /mA RCCB
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Standard 40 A, 30 mA earth-leakage breaker.
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Detects imbalance and quickly trips to protect against leakage to earth.
Hager CE440J RCCB 4P Type A 40 /A 100 /mA
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Type A residual current detection (better for circuits with electronics).
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100 mA sensitivity and 40 A rating — suitable for mixed loads.
HAGER CD463B 63 /A 4P 30 /mA RCCB
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63 A, 30 mA high-sensitivity 4P unit — good choice for larger three-phase loads needing good human-safety protection.
HAGER CE463B 63 /A 4P 100 /mA RCCB
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Same 63 A carry current but 100 mA sensitivity — less sensitive than 30 mA, useful for fire-hazard/leak monitoring in bigger panels.
Hager 4P 63 /A/100 /A RCCB ELCB
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Higher-end multi-rating RCCB that can handle up to 100 A — good for main three-phase incomer protection.
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40 A, 300 mA version — suitable where fire hazard protection is a priority over human-touch sensitivity.
Hager CFC684B RCCB 100 /A 4P 300 /mA
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100 A, 300 mA earth leakage breaker — good for main three-phase distribution board earth-fault protection.
ùà Quick Specs & Function (Typical for Hager 4P RCCBs)
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Poles: 4 (three phases + neutral).
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Use: Detects earth leakage current (difference between currents in phases + neutral) and trips to prevent shock/fire risk.
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Rated voltage: ~230/400 V AC for three-phase systems.
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Sensitivity options: 10 mA, 30 mA, 100 mA, 300 mA, 500 mA depending on model/use.
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Rated current: Common available values 40 A, 63 A, 100 A — choose based on total load fed through the device.
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Standards: Conforms to IEC 61008 for residual current breakers.
Choosing the Right One
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30 mA — Best for human shock protection (general residential/office).
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100 mA — Good compromise for mixed circuits and panel feeds.
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300 mA or 500 mA — Typical for fire hazard protection and larger distribution mains.
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Higher current ratings (63 A, 100 A) — For main incomer or heavy three-phase loads.



